Tried to download the new drivers at https://www2.ati.com/drivers/linux/ubuntu/amdgpu-pro-17.50-511655.tar.xz.
When I try to unzip the file, I receive the following errors:
tar: Unrecognized archive format
tar: Error exit delayed from previous errors.
I have installed the prior versions successfully, but would like to upgrade to the most current driver.